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Encrypt: Add --session-key-out support

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This commit is contained in:
Paul Schaub 2023-10-31 15:54:54 +01:00
parent a8829350a8
commit 5ee9414410
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
7 changed files with 162 additions and 40 deletions
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2
external-sop/src/main/java/sop/external/ExternalSOP.java vendored
View file

@ -147,7 +147,7 @@ public class ExternalSOP implements SOP {
@Override
public Encrypt encrypt() {
return new EncryptExternal(binaryName, properties);
return new EncryptExternal(binaryName, properties, tempDirProvider);
}
@Override

62
external-sop/src/main/java/sop/external/operation/EncryptExternal.java vendored
View file

@ -4,14 +4,19 @@
package sop.external.operation;
import sop.Ready;
import sop.EncryptionResult;
import sop.ReadyWithResult;
import sop.SessionKey;
import sop.enums.EncryptAs;
import sop.exception.SOPGPException;
import sop.external.ExternalSOP;
import sop.operation.Encrypt;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
@ -21,6 +26,7 @@ import java.util.Properties;
*/
public class EncryptExternal implements Encrypt {
private final ExternalSOP.TempDirProvider tempDirProvider;
private final List<String> commandList = new ArrayList<>();
private final List<String> envList;
private int SIGN_WITH_COUNTER = 0;
@ -28,7 +34,8 @@ public class EncryptExternal implements Encrypt {
private int PASSWORD_COUNTER = 0;
private int CERT_COUNTER = 0;
public EncryptExternal(String binary, Properties environment) {
public EncryptExternal(String binary, Properties environment, ExternalSOP.TempDirProvider tempDirProvider) {
this.tempDirProvider = tempDirProvider;
this.commandList.add(binary);
this.commandList.add("encrypt");
this.envList = ExternalSOP.propertiesToEnv(environment);
@ -92,8 +99,53 @@ public class EncryptExternal implements Encrypt {
}
@Override
public Ready plaintext(InputStream plaintext)
throws SOPGPException.KeyIsProtected {
return ExternalSOP.executeTransformingOperation(Runtime.getRuntime(), commandList, envList, plaintext);
public ReadyWithResult<EncryptionResult> plaintext(InputStream plaintext)
throws SOPGPException.KeyIsProtected, IOException {
File tempDir = tempDirProvider.provideTempDirectory();
File sessionKeyOut = new File(tempDir, "session-key-out");
sessionKeyOut.delete();
commandList.add("--session-key-out=" + sessionKeyOut.getAbsolutePath());
String[] command = commandList.toArray(new String[0]);
String[] env = envList.toArray(new String[0]);
try {
Process process = Runtime.getRuntime().exec(command, env);
OutputStream processOut = process.getOutputStream();
InputStream processIn = process.getInputStream();
return new ReadyWithResult<EncryptionResult>() {
@Override
public EncryptionResult writeTo(OutputStream outputStream) throws IOException {
byte[] buf = new byte[4096];
int r;
while ((r = plaintext.read(buf)) > 0) {
processOut.write(buf, 0, r);
}
plaintext.close();
processOut.close();
while ((r = processIn.read(buf)) > 0) {
outputStream.write(buf, 0 , r);
}
processIn.close();
outputStream.close();
ExternalSOP.finish(process);
FileInputStream sessionKeyOutIn = new FileInputStream(sessionKeyOut);
String line = ExternalSOP.readString(sessionKeyOutIn);
SessionKey sessionKey = SessionKey.fromString(line.trim());
sessionKeyOutIn.close();
sessionKeyOut.delete();
return new EncryptionResult(sessionKey);
}
};
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}

36
sop-java-picocli/src/main/java/sop/cli/picocli/commands/EncryptCmd.java
View file

@ -5,7 +5,9 @@
package sop.cli.picocli.commands;
import picocli.CommandLine;
import sop.Ready;
import sop.EncryptionResult;
import sop.ReadyWithResult;
import sop.SessionKey;
import sop.cli.picocli.SopCLI;
import sop.enums.EncryptAs;
import sop.exception.SOPGPException;
@ -13,6 +15,8 @@ import sop.operation.Encrypt;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
@ -49,11 +53,18 @@ public class EncryptCmd extends AbstractSopCmd {
paramLabel = "CERTS")
List<String> certs = new ArrayList<>();
@CommandLine.Option(
names = {"--session-key-out"},
paramLabel = "SESSIONKEY")
String sessionKeyOut;
@Override
public void run() {
Encrypt encrypt = throwIfUnsupportedSubcommand(
SopCLI.getSop().encrypt(), "encrypt");
throwIfOutputExists(sessionKeyOut);
if (profile != null) {
try {
encrypt.profile(profile);
@ -145,8 +156,27 @@ public class EncryptCmd extends AbstractSopCmd {
}
try {
Ready ready = encrypt.plaintext(System.in);
ready.writeTo(System.out);
ReadyWithResult<EncryptionResult> ready = encrypt.plaintext(System.in);
EncryptionResult result = ready.writeTo(System.out);
if (sessionKeyOut == null) {
return;
}
try (OutputStream outputStream = getOutput(sessionKeyOut)) {
if (!result.getSessionKey().isPresent()) {
String errorMsg = getMsg("sop.error.runtime.no_session_key_extracted");
throw new SOPGPException.UnsupportedOption(String.format(errorMsg, "--session-key-out"));
}
SessionKey sessionKey = result.getSessionKey().get();
if (sessionKey == null) {
return;
}
PrintWriter writer = new PrintWriter(outputStream);
// CHECKSTYLE:OFF
writer.println(sessionKey);
// CHECKSTYLE:ON
writer.flush();
}
} catch (IOException e) {
throw new RuntimeException(e);
}

44
sop-java-picocli/src/test/java/sop/cli/picocli/commands/EncryptCmdTest.java
View file

@ -4,6 +4,24 @@
package sop.cli.picocli.commands;
import com.ginsberg.junit.exit.ExpectSystemExitWithStatus;
import org.jetbrains.annotations.NotNull;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import sop.EncryptionResult;
import sop.ReadyWithResult;
import sop.SOP;
import sop.cli.picocli.SopCLI;
import sop.cli.picocli.TestFileUtil;
import sop.enums.EncryptAs;
import sop.exception.SOPGPException;
import sop.operation.Encrypt;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
@ -11,22 +29,6 @@ import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import com.ginsberg.junit.exit.ExpectSystemExitWithStatus;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import sop.Ready;
import sop.SOP;
import sop.cli.picocli.SopCLI;
import sop.cli.picocli.TestFileUtil;
import sop.enums.EncryptAs;
import sop.exception.SOPGPException;
import sop.operation.Encrypt;
public class EncryptCmdTest {
Encrypt encrypt;
@ -34,10 +36,10 @@ public class EncryptCmdTest {
@BeforeEach
public void mockComponents() throws IOException {
encrypt = mock(Encrypt.class);
when(encrypt.plaintext((InputStream) any())).thenReturn(new Ready() {
when(encrypt.plaintext((InputStream) any())).thenReturn(new ReadyWithResult<EncryptionResult>() {
@Override
public void writeTo(OutputStream outputStream) {
public EncryptionResult writeTo(@NotNull OutputStream outputStream) throws IOException, SOPGPException {
return new EncryptionResult(null);
}
});
@ -190,9 +192,9 @@ public class EncryptCmdTest {
@Test
@ExpectSystemExitWithStatus(1)
public void writeTo_ioExceptionCausesExit1() throws IOException {
when(encrypt.plaintext((InputStream) any())).thenReturn(new Ready() {
when(encrypt.plaintext((InputStream) any())).thenReturn(new ReadyWithResult<EncryptionResult>() {
@Override
public void writeTo(OutputStream outputStream) throws IOException {
public EncryptionResult writeTo(@NotNull OutputStream outputStream) throws IOException, SOPGPException {
throw new IOException();
}
});

15
sop-java/src/main/kotlin/sop/EncryptionResult.kt Normal file
View file

@ -0,0 +1,15 @@
// SPDX-FileCopyrightText: 2023 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package sop
import sop.util.Optional
class EncryptionResult(sessionKey: SessionKey?) {
val sessionKey: Optional<SessionKey>
init {
this.sessionKey = Optional.ofNullable(sessionKey)
}
}

13
sop-java/src/main/kotlin/sop/operation/Encrypt.kt
View file

@ -6,8 +6,9 @@ package sop.operation
import java.io.IOException
import java.io.InputStream
import sop.EncryptionResult
import sop.Profile
import sop.Ready
import sop.ReadyWithResult
import sop.enums.EncryptAs
import sop.exception.SOPGPException.*
import sop.util.UTF8Util
@ -146,20 +147,22 @@ interface Encrypt {
* Encrypt the given data yielding the ciphertext.
*
* @param plaintext plaintext
* @return input stream containing the ciphertext
* @return result and ciphertext
* @throws IOException in case of an IO error
* @throws KeyIsProtected if at least one signing key cannot be unlocked
*/
@Throws(IOException::class, KeyIsProtected::class) fun plaintext(plaintext: InputStream): Ready
@Throws(IOException::class, KeyIsProtected::class)
fun plaintext(plaintext: InputStream): ReadyWithResult<EncryptionResult>
/**
* Encrypt the given data yielding the ciphertext.
*
* @param plaintext plaintext
* @return input stream containing the ciphertext
* @return result and ciphertext
* @throws IOException in case of an IO error
* @throws KeyIsProtected if at least one signing key cannot be unlocked
*/
@Throws(IOException::class, KeyIsProtected::class)
fun plaintext(plaintext: ByteArray): Ready = plaintext(plaintext.inputStream())
fun plaintext(plaintext: ByteArray): ReadyWithResult<EncryptionResult> =
plaintext(plaintext.inputStream())
}

30
sop-java/src/testFixtures/java/sop/testsuite/operation/EncryptDecryptTest.java
View file

@ -10,13 +10,16 @@ import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
import sop.ByteArrayAndResult;
import sop.DecryptionResult;
import sop.EncryptionResult;
import sop.SOP;
import sop.SessionKey;
import sop.Verification;
import sop.enums.EncryptAs;
import sop.enums.SignatureMode;
import sop.exception.SOPGPException;
import sop.testsuite.TestData;
import sop.testsuite.assertions.VerificationListAssert;
import sop.util.Optional;
import sop.util.UTCUtil;
import java.io.IOException;
@ -27,6 +30,7 @@ import java.util.List;
import java.util.stream.Stream;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
@ -41,18 +45,26 @@ public class EncryptDecryptTest extends AbstractSOPTest {
@MethodSource("provideInstances")
public void encryptDecryptRoundTripPasswordTest(SOP sop) throws IOException {
byte[] message = TestData.PLAINTEXT.getBytes(StandardCharsets.UTF_8);
byte[] ciphertext = sop.encrypt()
ByteArrayAndResult<EncryptionResult> encResult = sop.encrypt()
.withPassword("sw0rdf1sh")
.plaintext(message)
.getBytes();
.toByteArrayAndResult();
byte[] plaintext = sop.decrypt()
byte[] ciphertext = encResult.getBytes();
Optional<SessionKey> encSessionKey = encResult.getResult().getSessionKey();
ByteArrayAndResult<DecryptionResult> decResult = sop.decrypt()
.withPassword("sw0rdf1sh")
.ciphertext(ciphertext)
.toByteArrayAndResult()
.getBytes();
.toByteArrayAndResult();
byte[] plaintext = decResult.getBytes();
Optional<SessionKey> decSessionKey = decResult.getResult().getSessionKey();
assertArrayEquals(message, plaintext);
if (encSessionKey.isPresent() && decSessionKey.isPresent()) {
assertEquals(encSessionKey.get(), decSessionKey.get());
}
}
@ParameterizedTest
@ -62,6 +74,7 @@ public class EncryptDecryptTest extends AbstractSOPTest {
byte[] ciphertext = sop.encrypt()
.withCert(TestData.ALICE_CERT.getBytes(StandardCharsets.UTF_8))
.plaintext(message)
.toByteArrayAndResult()
.getBytes();
ByteArrayAndResult<DecryptionResult> bytesAndResult = sop.decrypt()
@ -83,6 +96,7 @@ public class EncryptDecryptTest extends AbstractSOPTest {
byte[] ciphertext = sop.encrypt()
.withCert(TestData.BOB_CERT.getBytes(StandardCharsets.UTF_8))
.plaintext(message)
.toByteArrayAndResult()
.getBytes();
byte[] plaintext = sop.decrypt()
@ -101,6 +115,7 @@ public class EncryptDecryptTest extends AbstractSOPTest {
byte[] ciphertext = sop.encrypt()
.withCert(TestData.CAROL_CERT.getBytes(StandardCharsets.UTF_8))
.plaintext(message)
.toByteArrayAndResult()
.getBytes();
byte[] plaintext = sop.decrypt()
@ -120,6 +135,7 @@ public class EncryptDecryptTest extends AbstractSOPTest {
.withCert(TestData.ALICE_CERT.getBytes(StandardCharsets.UTF_8))
.noArmor()
.plaintext(message)
.toByteArrayAndResult()
.getBytes();
byte[] armored = sop.armor()
@ -144,6 +160,7 @@ public class EncryptDecryptTest extends AbstractSOPTest {
.signWith(TestData.ALICE_KEY.getBytes(StandardCharsets.UTF_8))
.mode(EncryptAs.binary)
.plaintext(message)
.toByteArrayAndResult()
.getBytes();
ByteArrayAndResult<DecryptionResult> bytesAndResult = sop.decrypt()
@ -175,6 +192,7 @@ public class EncryptDecryptTest extends AbstractSOPTest {
.signWith(TestData.ALICE_KEY.getBytes(StandardCharsets.UTF_8))
.mode(EncryptAs.text)
.plaintext(message)
.toByteArrayAndResult()
.getBytes();
ByteArrayAndResult<DecryptionResult> bytesAndResult = sop.decrypt()
@ -215,6 +233,7 @@ public class EncryptDecryptTest extends AbstractSOPTest {
.signWith(key)
.withKeyPassword(keyPassword)
.plaintext(message)
.toByteArrayAndResult()
.getBytes();
ByteArrayAndResult<DecryptionResult> bytesAndResult = sop.decrypt()
@ -305,6 +324,7 @@ public class EncryptDecryptTest extends AbstractSOPTest {
assertThrows(SOPGPException.MissingArg.class, () -> sop.encrypt()
.plaintext(message)
.toByteArrayAndResult()
.getBytes());
}
}